Straddle-row cultivator.



No. 638,67l. Patented 086.5, i899. s. n. PooLE.

STRADDLE RDW CULTIVATDR.

(Application filed Aug. 7, 1899.) l (No Model.) 3 Sheets-Sheet l.

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No. 638,67I. Patented nec. 5, |a99.\

s. n. Puma. y

STRADDLE ROW CULTIVATOR.

(Application flied Aug. 7, 1899.)

3 Sheets-Sheet 2.

No. 638,67l. Patented necgy'a', |899.

s. n. POULE. Y

STBADDLE RDW [IUL'I'IVAI'ILl Y (Applcationjled Aug. 7, 1899.) (No Model.) a shuts-sheet 2J.

TH: Noems meng co, PHoTaLmao.. WASHINGTON. DA c.

Ntra STATES PATENT nricn.

STALEY D. POOLE, OF MOLINE, ILLINOIS, .ASSIGNOR TO THE DEERE t COMPANY, OF SAME PLACE.

STRADDLE-ROW CU LTIVATOR.

SPECIFICATION forming part of Letters Patent No. 638,671, dated December 5, 1899.

Application filed August 7,1899. Serial No. 726.462. (No model.)

To @ZZ whom it may concern;

Beit known that l, STALEY D. POOLE, a citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Straddle-Row Cultivators; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to Wheeled straddle-row cultivators, and aims, for one thing, to improve the same by a novel construction of shovel-rig establishing a more effective relationship between shovels of adjacent gangs and providing for greater latitude of adjustment between the gangs, and, for another thing, aims to aiford greater conveniences for manipulating the shovel-rigs from a seat on the cultivator, such manipulation including raising and lowering and also lateral adjustment.

Other objects are to improve the details of construction in point of durability and to generally increase facilities for adapting the cultivator to varying conditions.

With the above-stated objects in view the invention consists in a number of novel features of construction and combinations of parts, the essential elements of which are enumerated in the appended claims and a preferred form of embodiment of which is illustrated in the accompanying drawings and specifically described hereinafter.

Of said drawings, Figure 1 represents the cult-ivator in perspective. Fig. 2 represents the same in top plan view. Fig. 3 is a crosssection taken longitudinally of the front axle. Fig. ilrepresents a group of details in perspective. Fig. 5 represents one of the beamcouplings in perspective. Fig. 6 is a longitudinal section taken substantially on the line VI VI of Fig. 2, showing the hand-operated mechanism for raising the shovel-rigs. Fig. 7 represents a group of details in perspective which are parts of said shovel-'lifting mechanism. Figs. 8, 9, and 10 represent certain other details in perspective.

The front or main axle of the machine is of a well-known form, the same comprising a pair of arches a and a', with outer and inner horizontal end portions a2 and a3, the former constituting journals on which the wheels h are mounted and the latter abutting within a clamp which holds the two sections of the axle rigidly together. This clamp is illustrated in perspective in Fig. 9 and is in the form of an elongated split sleeve c,with flanges c' extending from end to end and suitably apertured to accommodate clam ping-bolts, the sleeve being also formed with transverse openings c2 through its body portion, alining with similar openings in the end portions 0.3 of the axle-sections for the accommodation of a draft-staple c3, as shown in Fig. 2.

The framework of the cultivator comprises a front bar d, extending along the forward sides of both of the arches ct and d', near the upper portions thereof, and clamped thereto by means of ring-bolts d'. Brace-rods 07.2 extend between said bar CZ and the axle-clamp c, as clearly shown in Fig. 3, said brace-rods being connected with said clamp by means of the bolts and nuts associated with the flanges c'. The bar CZ has rearwardly-turned end portions d?, which overlap the sides of a rear arched frame member d4, the overlapping portions of the frame-bars being securely bolted together. Right -angle bars e are secured against the front side ofthe bar d, their outstanding parallel portions receiving between them the tongues e, which are pivotally connected with said bars by means of long bolts e2, lalso securing the outer ends of brace-bars e3 and e4. The brace-bars eoverlap the side portions of the frame member d and are secured thereto by the same bolts and nuts which fasten the frame members d and Z4 together, as hereinbefore explained, and the brace-bars e? are secured to the frame member CZ by means of the same bolts and nuts which fasten the brace-rods d2 to said bar.

Equalizing draft-levers f are pivoted at f to brackets f2, secured on the outer sides of the tongues e', said levers being coupled together at their inner ends by means of rings f3 and a loop f4, which engages the rings, and also a pendent draft-link f5, coupled by a rod f5 with the draft-staple c3, hereinbefore mentioned. Other draft-links f7 depend from eyebolts secured in the outer ends of the equalizing-levers and at their lower ends are coupled by rods f3 with collars g, surround- IOO ing the outer horizontal portions of the axlesections. The arrangement just described provides for three horses, the whifetrees being-connected with the three draft-links, respectively, and the leverage being such as to equalize the draft-in an obvious manner.

Turn-buttons 72, on the rear ends of the tongues e' are provided for locking the latter against pivotal movement by engaging over the bars e when the cultivator is operating on level ground.

Sand-boxes z' are clamped to the outer end portions a2 of the axle-sections in association with the wheel-hubs, and brace-rods t" extend from said sand-boxes to the sides of the frame, being secured to the latter by bolts and nuts, which fasten together the overlapping frame members and the brace-bars c3. Other bracerods i2 extend from said sandboxes rearwardly and upwardly to the rear bar of the frame member (Z4, being secured to the same by bolts and nuts, which also secure bracerods 3 to said bar, the latter brace-rods formed at their lower forward ends into rings t4, which embrace the axle-journals a2 close to the bends which connect said axle-journals with the arches CL a. Similar brace-rods extend from the rear part of the frame member d4 to the inner horizontal end portions d3 of the axle-sections, saidA rods being formed into eyes i, which embrace said horizontal portions close to the bends which unite them with the arches. A central brace-rod 'il extends from the frame member d4 to the clamp c, being united therewith by a bolt and nut which is associated with the flanges c.

Sleeves are journaled upon the horizontal portions of the axle-sections, respectively, each of said sleeves being formed at one end with a downwardly and rearwardly -projecting arm j', which is coupled by means of a loop j? with a spiral spring js, connected through a rod j4 with an arm ,7'5 of a casting j, clamped to one of the axle-arches fat one of the upper bends thereof. The said spiral springs are of the retractile type and exert themselves to turn the sleeves rearwardly and through the medium of said sleeves to elevate the shovel-rigs, as will appear hereinafter. Each of the said sleeves is made with a polygonal exterior contour, and a similarly-formed collar cis mounted thereon, said collar being formed with oppositely-projecting arms 7c', terminatingin conical journals k2. (See Fig. 4.) Abeam-coupling m of abifurcated form is connected with said collar and arms, the said coupling being provided with cups m', arranged to center on the conical journals 712, so that the coupling, with its beam, can swing laterally on said journals.

Each shovel-beam comprises a straight bar m2, engaging at its forward end with one side of the coupling m, a bar having a portion m3 parallel with said bar m2 and engaging the opposite side of the said coupling, said bar being bolted to the coupling, and an angular bar or bracket m4, secured to one side of the bar m2. The second-nam ed bar has a triangleshaped portion m5 springing from its portion m3 and bolted at the rear end to-the bar m2, as shown at m6, this triangle portion bearing a diagonal relation to the bracket m4. Each beam is equipped with three shovels n, the Shanks of two of which are secured to the middle portions of the brackets m4 and m5, respectively, the shank of the third shovel being secured to a rearwardly-extending portion ot' the bracket m4beyond the point where the latter is clamped to the rear end of the bar m2. It will be seen that by this arrangement the shovels have a zigzag relation and adjacent gangs can be brought in close relation, the nearest shovel of one gang being opposite the space between two shovels of the neighboring gang.

The four-shovel gangs shown in the drawings are coupled together in pairs, for which purpose there are clamped to the inner sides of the bars m2 ot' adjacent beams brackets o, which have upper and lower ears,with alining openings for the reception ot lower rounded ends of spreader-bars 0' to provide a swiveling form of connection with the beams. The upper portions of these spreader-bars overlap and are embraced by a sleeve 02, equipped with binding-screws o3. Said sleeve is formed on the front side with a bearing o4 for the rounded stem 05 of a lifting-loop o, through which a lifting-lever p extends. Said lever consists of two bars bolted together and pivoted at their forward ends to the front portion of a segmental bracket p', which has a rounded stem pgat its rearpart, said stem journaling in a bearing p3, clamped to the frame member d4, this arrangement permitting the lateral swinging of the lever without disturbing its relation to the said segmental bracket. The latter has an upstanding notched arm p4, with which a spiral spring p5 is engaged, the opposite end ot' said spring being connected by a link p6 with the lever p and said spring being of the retractile type and exerting itself to raise the lever,and consequently the duplex shovel-rig, with which the latter is connected. The lever is provided with a suitable handle lw at the rear end, by which it can be manip- IOO IIO

ulated, and its position can be regulated by means of rack teeth p7 on the segmental bracket, a dog or pawl p8, arranged to engage said teeth, as shown in Fig. 6, said pawl extending through a spring-box p9, fastened to the lever, and a rod q, connecting the pawl with the usual hand-piece q2, arranged on the lever adjacent to the handle thereof, said rod sliding through a spreader Q3, which holds the lever-bars apart.

Divergent bars 0' extend under the framebars d and d, being suitably fastened thereto, and said divergent bars have parallel portions at the rear, which are clamped together and to a bearing r', accommodating the pivot r2 of the rear-wheel support, said support having a bifurcation r3, in which the rear wheel r4 is journaled.

A seat s is mounted upon the bars 1" in such a position that the operator can conveniently manipulate the handles w of the levers p. It will be understood that by manipulation of these handles the shovel-rigs can be adj usted up or down and also moved laterally. When the cultivator is not in use, the shovels will be held in elevated position above the ground by the engagement of the pawls p8 with ratchet-teeth p, formed on the upper portions of the brackets p'. The usual footholds t are mounted upon the two middle shovel-beams, and the shovel -rigs can be moved by this means as Well as by manipulating the levers.

It will be seen that the above-described construction is well calculated to fulfil the objects primarily stated. However, modification might of course be made without departing from the spirit and scope of the invention.

Having thus fully described my invention, what I claim as new, and desire vto secure by Letters Patent of the United States, is

l. A cultivator shovel-rig consisting of a beam comprising two parallel bars, one having on one side a bracket provided with a rearward portion extending beyond the bar, the other having on the opposite side a similar bracket springing therefrom and bearing a diagonal relation to the rst bracket, and shovels with shanks secured to said brackets, one on each side of the beam and one at the rear end of the latter, substantially as described.

2. In a cultivator, a number of laterallymovable shovel-rigs, each consisting of a beam comprising two parallel bars, one having on one side a bracket, the other having on the opposite side a similar bracket springing therefrom and bearin g a diagonal relation to the first, shovels with Shanks secured to said brackets, and additional shovels located to the rear of those for each beam and bearing a diagonal relation to each of them, substantially as described.

3. In a wheeled cultivator, the combination of an elevated frameworkV supported from the wheels, one or more laterally and vertically swinging shovel-rigs, one or more levers on the elevated framework having swiveled connection with the shovel-rigs, and spring-actuated with a tendency to raise the latter, and means for holding said lever at diiferent positions, substantially as described.

4. In a wheeled cultivator, the combination of an elevated framework supported from the wheels, a bracket swiveled on said framework and having a segmental rack, a lever pivoted at one end to the forward end of the said bracket and having a swiveled connection intermediate of its ends with the shovel-rig, a spring connecting the upper portion of the bracket with the lever with a tendency to elevate the latter, and a ratchet for engaging the segmental rack together with means on the lever for operating the ratchet, substantially as described.

In testimony whereof I afiX my signature in presence of two witnesses.

STALEY D. POOLE.

Vitnesses:

LIPTER J. CHAMBERS, WM. BUTTERWORTH. 

